:root{
  color-scheme:dark;
  --bg:#08080b;
  --bg-soft:#0d0d12;
  --surface:#121218;
  --surface-2:#181820;
  --ink:#f7f6fb;
  --ink-soft:#bebcc7;
  --muted:#777682;
  --line:rgba(255,255,255,.1);
  --line-soft:rgba(255,255,255,.06);
  --purple:#a06ee1;
  --purple-bright:#bc8dff;
  --purple-soft:rgba(160,110,225,.14);
  --blue:#7aa2ff;
  --ok:#82d8a1;
  --gutter:clamp(24px,4vw,80px);
  --shell:calc(100% - var(--gutter) * 2);
  --header-h:74px;
  --radius:22px;
  font-family:Inter,"SF Pro Display","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-synthesis:none;
  text-rendering:optimizeLegibility
}
*{box-sizing:border-box}
/* 用 proximity 而不是 mandatory：比视口高的区块（服务路径、钉住的那两屏）在 mandatory 下
   只有「仍完全盖住视口」的位置才算合法停靠，滚到区块下半部分会被强行拽去下一屏。
   proximity 只在接近边界时才吸附，区块内部可自由停留；snap-stop 保留，一次手势仍不会跨过一屏 */
html{scroll-behavior:smooth;background:var(--bg);scroll-snap-type:y proximity}
main > section,.site-footer{scroll-snap-align:start;scroll-snap-stop:always}
/* 这三块所在的 section 都不止一屏，吸附点只挂在 section 上会漏掉它们 */
.evidence-inner,.evidence-outro,.readiness-outro{scroll-snap-align:start;scroll-snap-stop:always}
/* 这两屏内部按步吸附由 JS 接管，浏览器的区块级吸附会和它打架 */
.product-story,.readiness{scroll-snap-align:none;scroll-snap-stop:normal}
body{margin:0;min-width:320px;background:var(--bg);color:var(--ink);overflow-x:hidden}
body::selection{background:var(--purple);color:#fff}
a{color:inherit;text-decoration:none}
button{font:inherit}
img,svg{display:block}
.skip-link{position:fixed;z-index:100;left:16px;top:12px;padding:10px 14px;border-radius:10px;background:#fff;color:#08080b;transform:translateY(-150%);transition:transform .2s}
.skip-link:focus{transform:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
.shell{width:var(--shell);margin-inline:auto}
.section{position:relative;padding:148px 0}

/* section 之间的接缝：叠若干层 backdrop-filter，每层用 mask 只保留一段，合成渐进模糊 */
.gradual-blur{position:absolute;left:calc(50% - 50vw);width:100vw;z-index:0;pointer-events:none}
.gradual-blur-bottom{bottom:0}
.gradual-blur-top{top:0}
.gradual-blur-inner{position:relative;width:100%;height:100%}
.gradual-blur-inner>div{position:absolute;inset:0}
.gradual-blur.is-idle .gradual-blur-inner>div{backdrop-filter:none;-webkit-backdrop-filter:none}

.site-header{position:fixed;z-index:50;top:0;left:0;width:100%;height:var(--header-h);display:flex;align-items:center;gap:10px;padding:0 var(--gutter);border-bottom:1px solid transparent;background:transparent;transition:background .25s,border-color .25s,backdrop-filter .25s}
.site-header.is-scrolled{border-bottom-color:var(--line-soft);background:rgba(10,10,14,.72);backdrop-filter:blur(18px) saturate(135%);-webkit-backdrop-filter:blur(18px) saturate(135%)}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-logo{width:auto;height:40px;opacity:.94;transition:opacity .18s,transform .18s}
/* 英文名靠一条竖线和图标分开，字距拉开做成字标；整体跟着 logo 一起上浮 */
.brand-word{position:relative;padding-left:12px;color:#cfcbd9;font-size:15px;font-weight:600;letter-spacing:.24em;line-height:1;white-space:nowrap;transition:color .18s,transform .18s}
.brand-word::before{content:"";position:absolute;left:0;top:50%;height:17px;width:1px;margin-top:-8.5px;background:linear-gradient(180deg,transparent,var(--line-soft) 24%,var(--line-soft) 76%,transparent)}
.brand:hover .brand-logo,.brand:hover .brand-word{opacity:1;transform:translateY(-1px)}
.brand:hover .brand-word{color:#fff}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:24px}
.nav-links a{display:inline-flex;align-items:center;height:40px;padding:0 17px;border:1px solid transparent;border-radius:11px;color:#a5a3ae;font-size:15px;white-space:nowrap;transition:color .18s,background .18s,border-color .18s}
.nav-links a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-links a.is-active{border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.08);color:#fff}
.header-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.header-ghost{display:inline-flex;align-items:center;height:46px;padding:0 20px;border:1px solid rgba(255,255,255,.16);border-radius:99px;color:#d6d3dd;font-size:15px;white-space:nowrap;transition:border-color .18s,background .18s,color .18s}
.header-ghost:hover{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.06);color:#fff}
.header-cta{display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 7px 0 20px;border-radius:99px;background:#f6f4fa;color:#0e0d12;font-size:15px;font-weight:700;white-space:nowrap;transition:transform .18s,background .18s}
.header-cta:hover{transform:translateY(-1px);background:#fff}
.header-cta-badge{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--purple);color:#fff;font-size:14px;font-style:normal;transition:transform .18s}
.header-cta:hover .header-cta-badge{transform:rotate(45deg)}

.hero{position:relative;min-height:100svh;isolation:isolate;overflow:hidden;background:#07070a}
.hero-media,.hero-shade,.hero-grid{position:absolute;inset:0;pointer-events:none}
/* 首屏底图暂时隐藏（需求 #152）。恢复：删掉下面这行 display:none 即可，
   同时把 index.html <head> 里那条 preload 的注释一并解开 */
.hero-media{display:none;z-index:-4;background:url("assets/xianshu-engine-hero.png") center/cover no-repeat;filter:saturate(.68) contrast(1.03) brightness(.62);transform:scale(1.035);animation:hero-breathe 12s ease-in-out infinite alternate}
.hero-shade{z-index:-3;background:radial-gradient(ellipse 52% 62% at 50% 49%,rgba(6,6,9,.93) 0%,rgba(6,6,9,.87) 45%,rgba(6,6,9,.58) 73%,rgba(6,6,9,.2) 100%),linear-gradient(0deg,#08080b 0%,transparent 31%,rgba(7,7,10,.24) 100%)}
.hero-grid{z-index:-2;opacity:.15;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:80px 80px;mask-image:linear-gradient(to right,transparent,black 24%,black 76%,transparent)}
/* 顶部光线暂时隐藏。恢复：删掉下面这行 display:none 即可 */
.light-rays{display:none;position:absolute;z-index:-2;inset:0;overflow:hidden;pointer-events:none;opacity:.62;mask-image:linear-gradient(180deg,black 0%,black 52%,transparent 92%)}
.light-rays canvas{display:block;width:100%;height:100%}
.dot-grid{position:absolute;z-index:-1;inset:0;overflow:hidden;pointer-events:none}
.dot-grid__wrap{position:absolute;inset:0}
/* 公路光带：整体强度用这里的 opacity 调；上缘渐隐融进背景 */
.hyperspeed__canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.9;mask-image:linear-gradient(180deg,transparent,#000 12%)}
/* 首屏各尺寸同时受宽度和高度约束（min(vw, vh)），矮屏会等比缩小而不是溢出 */
.hero-inner{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:clamp(100px,14vh,146px);padding-bottom:clamp(118px,20vh,172px)}
.hero-copy{max-width:920px;margin-inline:auto;text-align:center}
/* 小标签脱离居中文案块，钉在首屏顶部、导航条下方 */
.hero-copy .hero-actions{justify-content:center}
.section-kicker{display:flex;align-items:center;gap:11px;margin:0 0 22px;color:#b9b5c1;font:600 13px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.11em;text-transform:uppercase}
.section-kicker::before{content:"";width:32px;height:1px;background:linear-gradient(90deg,var(--purple-bright),var(--blue))}
/* 标 + 文字组成一个横向锁定组合，整体居中 */
/* margin-bottom 加大 = 居中块变高 = 这组整体上移，同时给标题让出空间 */
/* XS 标和粒子「闲薯」都已隐藏，整组随之留空，一并收起避免留下空白间距。
   恢复：删掉 .hero-mark 的 display:none，同时把这里的 display:none 换回 flex */
.hero-stroke-text{display:none;align-items:center;justify-content:center;gap:clamp(7px,.85vw,13px);margin-bottom:clamp(28px,4.6vh,48px)}
.hero-mark{display:none;flex:none;width:auto;height:clamp(24px,min(3.1vw,5.2vh),54px);filter:drop-shadow(0 0 9px rgba(167,139,250,.28))}
/* 粒子文字：容器要比文字本身大一圈，否则粒子飞散的过程会被画布裁掉 */
/* 粒子「闲薯」暂时隐藏。恢复：删掉下面这行 display:none 即可 */
.particle-text{display:none;position:relative;flex:none;width:min(100%,196px,25vh);aspect-ratio:196/124}
.particle-text__canvas{display:block;width:100%;height:100%}
.particle-text__sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.hero h1{margin:0 auto;max-width:900px;font-size:clamp(34px,min(6.2vw,10.5vh),86px);font-weight:480;line-height:1.02;letter-spacing:-.06em}
/* 逐字模糊淡入：三段关键帧对应组件的 from → 中间态 → to，times [0,.5,1] 即 0%/50%/100% */
.blur-text{display:flex;flex-wrap:wrap;justify-content:center}
/* 撑满一整行把后面的字挤到下一行，用来做强制断行 */
.blur-text__break{flex-basis:100%;height:0}
.blur-text span{display:inline-block;filter:blur(10px);opacity:0;transform:translateY(-.58em);will-change:transform,filter,opacity}
.blur-text.is-in span{animation:blur-text-in .7s linear forwards;animation-delay:calc(var(--blur-base,0s) + var(--i,0) * var(--blur-step,.12s))}
@keyframes blur-text-in{
  0%{filter:blur(10px);opacity:0;transform:translateY(-.58em)}
  50%{filter:blur(5px);opacity:.5;transform:translateY(.06em)}
  100%{filter:blur(0);opacity:1;transform:none}
}
.hero-lead{position:relative;isolation:isolate;max-width:760px;margin:clamp(38px,6.4vh,66px) auto 0;color:#c2c0ca;font-size:clamp(14px,min(1.25vw,2.3vh),18px);line-height:1.75;letter-spacing:-.01em;text-wrap:balance}
/* 正文压在公路光带汇聚处，垫一层柔边暗底把字和背景拉开；--lead-scrim 调浓淡 */
.hero-lead{--lead-scrim:.34}
.hero-lead::before{content:"";position:absolute;z-index:-1;inset:-22px -48px;border-radius:50%;background:rgba(0,0,0,var(--lead-scrim));filter:blur(28px);pointer-events:none}
/* 首屏底部的装饰带：铺满可用宽度、大间距均分，无边框无底色 */
.hero-chips{position:absolute;z-index:1;left:var(--gutter);right:var(--gutter);bottom:40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px 32px;margin:0;padding:0;list-style:none;pointer-events:none}
.hero-chips li{display:inline-flex;align-items:center;gap:10px;color:#8d8a97;font-size:clamp(12px,min(1.05vw,1.9vh),15px);letter-spacing:.01em;white-space:nowrap}
.hero-chips i{width:6px;height:6px;border-radius:50%;background:linear-gradient(90deg,var(--purple-bright),var(--blue));box-shadow:0 0 10px rgba(160,110,225,.55)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:clamp(36px,5.4vh,52px)}
.button{min-height:clamp(48px,min(4.2vw,8vh),62px);display:inline-flex;align-items:center;justify-content:center;gap:13px;padding:0 clamp(20px,2.1vw,30px);border:1px solid transparent;border-radius:15px;font-size:clamp(14px,min(1.15vw,2.2vh),17px);font-weight:700;transition:transform .2s,border-color .2s,background .2s,color .2s}
.button span{transition:transform .2s}
.button:hover{transform:translateY(-2px)}
.button:hover span{transform:translate(2px,-1px)}
.button-primary{background:#f6f3fb;color:#0b0a0f;box-shadow:0 12px 34px rgba(0,0,0,.26)}
.button-primary:hover{background:#fff}
.button-ghost{border-color:rgba(255,255,255,.2);background:rgba(13,13,18,.32);color:#eeeaf4;backdrop-filter:blur(12px)}
.button-ghost:hover{border-color:rgba(255,255,255,.38);background:rgba(255,255,255,.08)}
.specular-button{position:relative;isolation:isolate;border-color:transparent;overflow:visible}
.specular-button:hover{border-color:transparent}
.specular-button__fx{position:absolute;z-index:-1;inset:-20px;overflow:visible;pointer-events:none}
.specular-button__fx canvas{display:block;width:100%;height:100%}
.specular-button__label{display:inline-flex;align-items:center;gap:12px}
.specular-button:hover .specular-button__fx,.specular-button:hover .specular-button__label{transform:none}
.specular-button:hover .specular-button__label>span{transform:translate(2px,-1px)}
.scroll-cue{position:absolute;bottom:98px;right:var(--gutter);display:flex;align-items:center;gap:9px;color:#8a8793;font-size:13px;letter-spacing:.06em;transition:color .2s}
.scroll-cue:hover{color:#c8c5d0}
.scroll-cue i{display:block;font-style:normal;animation:scroll-nudge 1.8s ease-in-out infinite}
.hero-enter{opacity:0;transform:translateY(18px);animation:hero-enter .8s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:calc(.12s + var(--enter-order)*.11s)}

/* 每屏底色渐变到下一屏的起始色，接缝处颜色连续，滚动时看不到硬切 */
.manifesto{position:relative;isolation:isolate;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 70px) 0 110px;background:linear-gradient(180deg,#08080b 0%,#08080b 58%,#09090c 100%)}

/* 背景视频：--video-strength 调视频强度，--video-veil 调蒙版浓度。
   遮罩挂在容器上（视频和蒙版一起淡出），只遮视频的话边缘会留下一块蒙版矩形 */
.section-video{--video-strength:.55;--video-veil:.52;position:absolute;z-index:-1;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;overflow:hidden;pointer-events:none;mask-image:radial-gradient(ellipse 74% 66% at 50% 50%,#000 22%,transparent 100%)}
/* 丝线背景，50% 透明度；区块是 shell 宽度，所以要出血到整幅 */
.section-threads{position:absolute;z-index:-1;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;opacity:.5;pointer-events:none}
.section-threads__canvas{display:block;width:100%;height:100%}
/* 压在背景层之上、内容之下的黑色蒙版。必须独立成层——放进 .section-threads 里
   会被它自身的 opacity:.5 一起削掉，实际只剩一半浓度 */
.section-scrim{position:absolute;z-index:-1;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;background:rgba(0,0,0,.3);pointer-events:none}
.section-video__media{display:block;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.4s ease}
.section-video.is-ready .section-video__media{opacity:var(--video-strength)}
.section-video__veil{position:absolute;inset:0;background:rgba(13,13,17,var(--video-veil))}
/* 这一屏是 flex 纵向居中：加大 margin-bottom 会把居中块整体撑高，标签随之上移；直接改 padding-top 只会让整块一起下沉 */
.manifesto .section-kicker{justify-content:center;margin-bottom:clamp(56px,9vh,104px);font-size:15px;letter-spacing:.13em}
.manifesto-layout{display:block;text-align:center}
.manifesto h2,.section-heading h2,.story-head h2,.evidence-head h2{margin:0;font-size:clamp(34px,min(5vw,8.6vh),68px);font-weight:450;line-height:1.12;letter-spacing:-.055em}
.manifesto h2{max-width:1300px;margin-inline:auto;color:#fff;font-size:clamp(30px,min(4.8vw,8.8vh),68px);text-wrap:balance}
/* 色块本身不能 overflow:hidden —— 那会让 inline-block 改用底边而不是基线对齐，色块会整体下沉。
   裁切放到内层，且窗口高度正好等于一个字高，字符位移 100% 就刚好完全移出 */
.pop-text{display:block;width:fit-content;margin:.55em auto 0;padding:.17em .36em;border-radius:.17em;background:linear-gradient(120deg,var(--purple-bright),var(--blue));color:#0b0a0f;letter-spacing:-.025em}
.pop-text__mask{display:block;height:1.22em;overflow:hidden;line-height:1.22;white-space:nowrap}
.pop-text__char{display:inline-block;transform:translateY(110%);transition:transform 1.05s cubic-bezier(.2,1.2,.3,1)}
.pop-text.is-in .pop-text__char{transform:translateY(0)}

/* 5 个节点竖排本来就高，这一屏不用 .section 的 148px 留白，改成整屏居中并压缩间距 */
.delivery{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 34px) 0 clamp(36px,5vh,64px);background:linear-gradient(180deg,#09090c 0%,#0d0d12 100%)}
/* 1280px 对齐下方的 .loop-tree，否则标题比树宽、左边缘对不齐 */
.section-heading{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:70px;align-items:end;max-width:1280px;margin:0 auto clamp(30px,5.4vh,84px)}
.delivery .section-heading{display:block;text-align:center;margin-bottom:74px}
.delivery .section-kicker{justify-content:center;font-size:15px;letter-spacing:.13em}
.delivery .section-heading h2{max-width:900px;margin-inline:auto}
/* 说明放大到 19px 后 640px 会被迫折行，宽度一并放宽 */
.delivery .section-summary{max-width:860px;margin:30px auto 0;color:#a09da9;font-size:19px;line-height:1.75}
.section-summary{margin:0;color:#92909b;font-size:15px;line-height:1.75}
/* 阶梯错落的网格；卡片每张右移 2 列、下移 1 行，形成从左上到右下的推进 */
.loop-board{--loop-cols:12;--loop-row:196px;position:relative;margin-top:6px;
  background-image:linear-gradient(90deg,var(--line-soft) 1px,transparent 1px),linear-gradient(180deg,var(--line-soft) 1px,transparent 1px);
  background-size:calc(100% / var(--loop-cols)) 100%,100% var(--loop-row)}
/* 树形：中间一条主干，节点左右交替分叉。列间距 = 2×枝长，主干正落在缝隙中线上 */
.loop-tree{--branch:58px;position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;column-gap:calc(var(--branch) * 2);row-gap:clamp(14px,2.4vh,34px);align-items:center;max-width:1280px;margin:0 auto;padding:0;list-style:none}
.loop-tree::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;margin-left:-.5px;background:linear-gradient(180deg,transparent,rgba(255,255,255,.2) 7%,rgba(255,255,255,.2) 93%,transparent)}
.loop-node{position:relative;display:flex;align-items:flex-start;gap:20px;padding:clamp(16px,2.4vh,28px) clamp(20px,2.2vw,32px);border:1px solid rgba(255,255,255,.11);border-radius:28px;background:linear-gradient(160deg,rgba(30,27,41,.94),rgba(15,14,20,.94));box-shadow:0 22px 54px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.05)}
/* 边框光晕：.loop-node 的 ::before/::after 已被树枝和接点占用，所以用独立子元素承载 */
.border-glow{position:absolute;inset:0;border-radius:inherit;opacity:var(--glow-o,0);pointer-events:none;transition:opacity .28s ease}
/* 只保留边框环：padding-box 与 border-box 相减 */
.border-glow::before,.border-glow::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1.5px;
  background:radial-gradient(var(--glow-size,180px) circle at var(--gx,50%) var(--gy,50%),#c084fc,#f472b6 38%,#38bdf8 68%,transparent 100%);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;-webkit-mask-composite:xor}
/* 同一个环再糊一层做外发光；只是环、不是实心块，所以不会蒙住卡片文字 */
.border-glow::after{padding:2px;filter:blur(14px);opacity:.85}
/* 必须显式指定行，否则自动排布会把 01、02 并排塞进同一行 */
.loop-node:nth-child(1){grid-column:1;grid-row:1}
.loop-node:nth-child(2){grid-column:2;grid-row:2}
.loop-node:nth-child(3){grid-column:1;grid-row:3}
.loop-node:nth-child(4){grid-column:2;grid-row:4}
.loop-node:nth-child(5){grid-column:1;grid-row:5}
/* 左侧节点整体镜像：序号靠主干一侧，文字右对齐 */
/* 只把序号镜像到主干一侧，文字保持左对齐——右对齐会让描述的末行飘在右边 */
.loop-node:nth-child(odd){flex-direction:row-reverse}
.loop-node:nth-child(odd) .loop-node__body{flex:1;text-align:left}
/* 分叉横枝 */
.loop-node::before{content:"";position:absolute;top:50%;width:var(--branch);height:1px;background:rgba(255,255,255,.2)}
.loop-node:nth-child(odd)::before{left:100%}
.loop-node:nth-child(even)::before{right:100%}
/* 主干上的接点 */
.loop-node::after{content:"";position:absolute;top:50%;width:9px;height:9px;border-radius:50%;background:var(--purple-bright);box-shadow:0 0 14px rgba(188,141,255,.75)}
.loop-node:nth-child(odd)::after{left:calc(100% + var(--branch));transform:translate(-50%,-50%)}
.loop-node:nth-child(even)::after{right:calc(100% + var(--branch));transform:translate(50%,-50%)}
/* .js .reveal 也在管 transition，得一并写进来，否则 hover 过渡会被它整条覆盖 */
.js .loop-tree .loop-node{transition:opacity 1.05s cubic-bezier(.16,.84,.24,1),transform 1.05s cubic-bezier(.16,.84,.24,1),border-color .3s,background .3s}
.loop-node:hover{border-color:rgba(188,141,255,.5);background:linear-gradient(160deg,rgba(41,35,58,.96),rgba(19,17,26,.96));box-shadow:0 26px 62px rgba(0,0,0,.52),0 0 0 1px rgba(188,141,255,.16),inset 0 1px 0 rgba(255,255,255,.07)}
.loop-node__index{flex:none;color:#f6f3fa;font-size:34px;font-weight:400;line-height:1.1;letter-spacing:-.04em}
.loop-node__index i{margin-left:2px;color:var(--purple-bright);font-style:normal}
.loop-node__body h3{margin:0 0 11px;font-size:21px;font-weight:560;letter-spacing:-.02em}
.loop-node__body p{margin:0;color:#9c99a6;font-size:16px;line-height:1.75}

/* 追光：用同一套线条图案当遮罩，光晕只在网格线上显形 */
/* 电流画布：压在网格线上、卡片之下 */
.loop-current{position:absolute;z-index:0;inset:0;width:100%;height:100%;pointer-events:none}
.loop-rays{position:absolute;z-index:0;inset:0;opacity:0;pointer-events:none;transition:opacity .4s;
  background:radial-gradient(260px circle at var(--rx,50%) var(--ry,50%),rgba(206,168,255,.95),rgba(122,162,255,.42) 42%,transparent 72%);
  mask-image:linear-gradient(90deg,#000 1px,transparent 1px),linear-gradient(180deg,#000 1px,transparent 1px);
  mask-size:calc(100% / var(--loop-cols)) 100%,100% var(--loop-row)}
.loop-board.is-lit .loop-rays{opacity:1}

/* 注意：这里不能有 overflow:hidden —— 祖先元素一旦有它，内部的 position:sticky 会直接失效 */
/* 钉住的两屏：色块保持到 76%，只在末段过渡，避免钉住期间背景一直在变色 */
.product-story{padding:0;background:linear-gradient(180deg,#0d0d12 0%,#0d0d12 76%,#09090d 100%)}
.product-story::before{content:"";position:absolute;left:50%;top:22%;width:760px;height:760px;border-radius:50%;background:rgba(86,65,146,.12);filter:blur(90px);transform:translateX(-50%)}
/* 三段滚动：外层撑高，内层钉住，滚动进度映射成 1→2→3 */
.story-scroll{position:relative;height:250vh}
.story-sticky{position:sticky;top:0;min-height:100svh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;padding:calc(var(--header-h) + 30px) 0 44px}
/* 左右分栏：左边标题+三步，右边堆叠的演示卡组 */
/* 必须给上限：不设的话在宽屏上会撑满整个 shell，左栏文字被推到屏幕最边上。
   1320px 和 .enterprise-inner / .faq-inner 对齐，几屏的文字起始线才在同一条竖线上 */
.story-layout{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.16fr);gap:clamp(26px,3.2vw,64px);align-items:center;max-width:1380px;margin:0 auto}
.story-side{display:flex;flex-direction:column;min-width:0}
.story-head{text-align:left}
.story-head h2{max-width:none;margin-inline:0;font-size:clamp(26px,min(3.1vw,5.6vh),46px);text-wrap:balance}
.story-head .section-kicker{justify-content:flex-start}
.story-lead{max-width:660px;margin:24px auto 0;color:#9f9da8;font-size:17px;line-height:1.8}
.story-side .story-lead{margin-inline:0}
/* 单行不折：这句约 51.6 个字宽，要求 51.6×字号 ≤ 0.92 视口宽 → 字号上限约 1.78vw，取 1.62vw 留余量 */
.story-head .story-lead{max-width:none;margin:clamp(14px,2vh,24px) 0 0;font-size:clamp(13px,min(1.05vw,1.9vh),16px);white-space:normal}

/* 不能有 overflow:hidden —— 堆在后面的两张卡就是靠露出边缘才看得出层次 */
.story-stage{--plate-pad:clamp(16px,1.7vw,30px);position:relative;height:clamp(360px,56vh,640px);margin-top:0;border-radius:clamp(18px,1.8vw,28px);perspective:1400px}
/* 装置底板：原来演示图是悬空的，右半边显得空。加一块有边框的底板，图就像被装进设备里 */
.story-stage::before{content:"";position:absolute;inset:0;border:1px solid var(--line-soft);border-radius:inherit;
  background:radial-gradient(120% 85% at 50% 0,rgba(36,30,58,.55),rgba(9,9,13,.34) 72%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.055),0 34px 80px -30px rgba(0,0,0,.8)}
/* 底板内的细网格，和服务路径那屏的网格是同一套语言；中心亮、四周化掉 */
.story-stage::after{content:"";position:absolute;inset:1px;border-radius:inherit;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(86% 76% at 50% 44%,#000 28%,transparent 84%)}
/* 描边流光：压在底板描边之上、演示面板之下 */
.story-beam{position:absolute;z-index:1;inset:0;width:100%;height:100%;pointer-events:none}
/* 浏览器演示内部是按 455px 定位的固定尺寸，矮屏整体等比缩放，避免顶到标题和步骤条 */
@media (max-height:940px){
  .ops-sticky{padding:calc(var(--header-h) + 18px) 0 30px}
  .ops-stage{margin-top:22px}.readiness-head .story-lead{margin-top:16px;font-size:min(15px,1.58vw)}
  .story-sticky{padding:calc(var(--header-h) + 20px) 0 32px}
  .story-stage{margin-top:20px}.story-steps{margin-top:20px}
  .story-lead{margin-top:16px;font-size:15px}
  .story-head .story-lead{margin-top:16px;font-size:min(15px,1.62vw)}
}
/* 演示图内部是按 455px 定高排的，矮屏整体等比缩放；底板加高后这几档可以放宽 */
@media (max-height:960px){.story-stage{--frame-scale:.92}}
@media (max-height:840px){.story-stage{--frame-scale:.82}}
@media (max-height:740px){.story-stage{--frame-scale:.72}}
/* 堆叠：--depth 是它排在当前卡之后第几张，由 JS 每次切换时改写。
   位移(26px)要大于缩放在底边造成的收缩，否则后面的卡会缩进前一张里、露不出来 */
.story-panel{position:absolute;inset:var(--plate-pad);display:flex;align-items:center;justify-content:center;
  transform-origin:50% 0;
  transform:translate3d(0,calc(var(--depth,0) * 26px),0) scale(calc(1 - var(--depth,0) * .035));
  opacity:calc(1 - var(--depth,0) * .32);
  filter:brightness(calc(1 - var(--depth,0) * .18));
  z-index:calc(9 - var(--depth,0));
  pointer-events:none;
  transition:transform .72s cubic-bezier(.2,.8,.2,1),opacity .6s ease,filter .6s ease}
.story-panel.is-active{pointer-events:auto}
/* 已看过的卡向上抽走，不再占着堆顶 */
.story-panel.is-past{opacity:0;transform:translate3d(0,-42px,0) scale(1.03);z-index:0}
.story-panel--browser .browser-frame{width:100%;transform:scale(var(--frame-scale,1));transform-origin:center}
.story-panel--console .delivery-console{position:relative;right:auto;bottom:auto;width:100%;padding:26px 30px;border-radius:20px;transform:scale(var(--frame-scale,1));transform-origin:center}
.story-panel--console .console-head{margin-bottom:12px;padding-bottom:18px;font-size:14px}
.story-panel--console .console-head i{width:8px;height:8px}
.story-panel--console .console-row{min-height:50px;gap:14px;font-size:16px}
.story-panel--console .console-row i{width:26px;height:26px;font-size:12px}

/* 三张面板的底色原来接近纯黑，压在深色底板上分不开，统一抬到 #22212b 一档 */
.audit-card{width:100%;padding:28px 32px;border:1px solid rgba(255,255,255,.2);border-radius:20px;background:linear-gradient(168deg,rgba(46,42,60,.96),rgba(26,24,33,.97));box-shadow:0 28px 70px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.09);transform:scale(var(--frame-scale,1));transform-origin:center}
.audit-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.16);color:#a5a1ae;font:500 14px/1 ui-monospace,monospace}
.audit-head span{display:flex;align-items:center;gap:10px;color:#eae7ef}
.audit-head i{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok)}
.audit-head b{color:var(--ok);font-weight:600}
.audit-list{margin:0;padding:0;list-style:none}
.audit-list li{display:flex;align-items:center;gap:14px;min-height:50px;color:#dcd9e3;font-size:16px}
.audit-list i{display:flex;align-items:center;justify-content:center;flex:none;width:26px;height:26px;border:1px solid rgba(130,216,161,.55);background:rgba(130,216,161,.08);border-radius:50%;color:var(--ok);font:normal 12px/1 ui-monospace,monospace}
.audit-list span{flex:1}
.audit-list em{color:#8bb59c;font-style:normal;font:500 12px/1 ui-monospace,monospace;letter-spacing:.08em}
.audit-foot{margin:18px 0 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);color:#9a97a4;font-size:15px;line-height:1.7}

.story-steps{display:flex;flex-direction:column;gap:clamp(10px,1.6vh,18px);margin:clamp(24px,3.6vh,44px) 0 0;padding:0;list-style:none}
/* 进度条不再铺满整列，改成固定长度的短条（轨道和填充同宽，进度语义才对） */
/* 竖排：序号在左，正文在右，进度轨改成贴在左侧的竖条 */
.story-step{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);gap:0 16px;padding:clamp(12px,1.8vh,18px) 16px clamp(12px,1.8vh,18px) 18px;border-radius:0 12px 12px 0;opacity:.42;background:linear-gradient(90deg,rgba(188,141,255,0),transparent 60%);transition:opacity .45s ease,background .45s ease}
/* 当前步：淡底 + 竖条发光，光看明暗还是分不清哪一步在走 */
.story-step.is-active{opacity:1;background:linear-gradient(90deg,rgba(188,141,255,.085),transparent 60%)}
.story-step.is-done{opacity:.6}
.story-step.is-active .story-step__bar{box-shadow:0 0 12px rgba(188,141,255,.55)}
.story-step__index{grid-column:1;color:#7c7985;font:500 13px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em;transition:color .35s}
.story-step.is-active .story-step__index{color:var(--purple-bright)}
.story-step__bar{position:absolute;left:0;top:0;bottom:0;width:2px;height:auto;overflow:hidden;border-radius:99px;background:rgba(255,255,255,.11)}
.story-step__bar i{display:block;width:100%;height:calc(var(--fill,0) * 100%);border-radius:99px;background:linear-gradient(180deg,var(--purple-bright),var(--blue))}
.story-step__label{display:block;color:#7c7985;font:500 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;transition:color .35s}
.story-step.is-active .story-step__label{color:var(--purple-bright)}
.story-step.is-done .story-step__label{color:#8d8a95}
/* 三步常驻显示，靠明暗区分当前步——原来非当前步整块折叠，才会「看不出有三个板块」 */
.story-step__body{grid-column:2;grid-row:1 / span 2}
.story-step__body h3{margin:0 0 6px;font-size:clamp(15px,min(1.35vw,2.4vh),20px);font-weight:560;letter-spacing:-.02em}
.story-step__body p{margin:0;color:#96939f;font-size:clamp(12px,min(1.02vw,1.85vh),14.5px);line-height:1.7}

.browser-frame{position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.2);border-radius:18px;background:#e8e4dc;box-shadow:0 34px 80px rgba(0,0,0,.5)}
.browser-bar{height:44px;display:flex;align-items:center;gap:14px;padding:0 15px;background:#2a2833;color:#948f9d;font:500 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace}
.browser-bar>span{flex:1;text-align:center}.browser-bar>b{padding:4px 7px;border-radius:5px;background:#2f2937;color:#b998e5;font-weight:600}
.traffic{display:flex;gap:5px}.traffic i{width:7px;height:7px;border-radius:50%;background:#ff6f6f}.traffic i:nth-child(2){background:#e9ba62}.traffic i:nth-child(3){background:#70c58d}
.demo-page{position:relative;height:455px;overflow:hidden;background:linear-gradient(125deg,#f3efe7 0 47%,#d9d1c3 47%)}
.demo-nav{height:48px;display:flex;align-items:center;gap:14px;padding:0 22px;border-bottom:1px solid rgba(20,17,14,.13);color:#26221e}
.demo-nav span{margin-right:auto;font:700 14px/1 Georgia,serif;letter-spacing:.12em}.demo-nav i{width:25px;height:3px;background:#837b70;border-radius:2px;opacity:.65}
.demo-hero{padding:58px 0 0 44px;color:#27221e}.demo-hero small{font:600 9px/1.2 ui-monospace,monospace;letter-spacing:.15em;text-transform:uppercase}.demo-hero strong{display:block;margin-top:14px;font:500 43px/.94 Georgia,serif;letter-spacing:-.05em}
.demo-product{position:absolute;right:4%;top:78px;display:flex;gap:11px;align-items:flex-end}.demo-product span{display:block;width:105px;height:262px;border-radius:60px 60px 18px 18px;background:linear-gradient(160deg,#968773,#50483e);box-shadow:0 20px 30px rgba(45,38,31,.17);transform:rotate(8deg)}.demo-product span:nth-child(2){height:296px;background:linear-gradient(160deg,#b6aa97,#696052);transform:rotate(-2deg)}.demo-product span:nth-child(3){height:230px;background:linear-gradient(160deg,#76695a,#3d3934);transform:rotate(-12deg)}
.demo-target{position:absolute;left:44px;bottom:42px;width:155px;height:44px;border:0;border-radius:2px;background:#2c2824;color:#fff;font-size:12px;letter-spacing:.06em}
.selection-ring{position:absolute;left:28px;bottom:27px;width:188px;height:75px;border:2px solid #a06ee1;border-radius:48% 52% 51% 49%;transform:rotate(-4deg);box-shadow:0 0 0 5px rgba(160,110,225,.1);animation:ring-drift 3s ease-in-out infinite}.selection-ring span{position:absolute;right:-5px;bottom:-5px;width:10px;height:10px;border:2px solid #fff;border-radius:50%;background:var(--purple);box-shadow:0 0 0 4px rgba(160,110,225,.25)}
.comment-bubble{position:absolute;left:204px;bottom:84px;width:245px;padding:12px 14px;border-radius:13px 13px 13px 3px;background:#221e29;color:#eee9f3;box-shadow:0 15px 30px rgba(0,0,0,.25);font-size:11px;line-height:1.6}.comment-bubble b{display:inline-flex;align-items:center;justify-content:center;width:19px;height:19px;margin-right:7px;border-radius:6px;background:var(--purple);font-size:9px}
.delivery-console{position:absolute;z-index:2;right:-1%;bottom:5px;width:420px;padding:15px 17px;border:1px solid rgba(255,255,255,.2);border-radius:16px;background:linear-gradient(168deg,rgba(46,42,60,.96),rgba(26,24,33,.97));box-shadow:0 28px 70px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.09);backdrop-filter:blur(18px)}
.console-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.16);color:#a5a1ae;font:500 10px/1 ui-monospace,monospace}.console-head span{display:flex;align-items:center;gap:8px;color:#eae7ef}.console-head i{width:6px;height:6px;border-radius:50%;background:var(--purple-bright);box-shadow:0 0 12px var(--purple)}
.console-row{display:flex;align-items:center;gap:10px;min-height:34px;color:#7d7a86;font-size:11px;transition:color .35s,transform .35s}.console-row i{display:flex;align-items:center;justify-content:center;width:19px;height:19px;border:1px solid #4e4b58;border-radius:50%;font:normal 9px/1 ui-monospace,monospace}.console-row.is-active{color:#efeaf4;transform:translateX(3px)}.console-row.is-active i{border-color:var(--purple);background:var(--purple-soft);color:var(--purple-bright)}.console-row.is-done{color:#b3afba}.console-row.is-done i{border-color:rgba(130,216,161,.4);color:var(--ok)}

/* 注意：不能有 overflow:hidden —— 祖先一旦有它，内部的 position:sticky 会失效 */
/* 底部补留白，引言才不会贴死在区块接缝上 */
.readiness{padding:0;background:linear-gradient(180deg,#09090d 0%,#09090d 76%,#0d0d12 100%)}
.ops-scroll{position:relative;height:260vh}
.ops-sticky{position:sticky;top:0;min-height:100svh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;padding:calc(var(--header-h) + 30px) 0 44px}
.readiness-head{max-width:1240px;margin:0 auto;text-align:center}
.readiness-head .section-kicker{justify-content:center}
/* 单行不折：这句 53 个字宽，53×字号 ≤ 0.92 视口宽 → 字号上限约 1.73vw，取 1.58vw 留余量 */
.readiness-head .story-lead{max-width:1020px;margin:24px auto 0;font-size:min(17px,1.58vw);white-space:nowrap}
#readiness-title{margin:0 auto;max-width:1100px;font-size:clamp(34px,min(5vw,8.6vh),68px);text-wrap:balance}

/* 卡片星座：画布比舞台大，靠平移把当前卡片送到它自己的落点 */
.ops-stage{position:relative;height:clamp(410px,48vh,560px);max-width:1320px;margin:clamp(22px,3vh,34px) auto 0;overflow:hidden;border:1px solid var(--line-soft);border-radius:26px;background:radial-gradient(120% 90% at 50% 0,rgba(30,25,48,.5),rgba(9,9,13,.5));cursor:pointer}
.ops-canvas{position:absolute;inset:0;width:150%;height:150%;transition:transform 1s cubic-bezier(.62,0,.18,1);will-change:transform}
.ops-card{position:absolute;left:var(--x);top:var(--y);width:clamp(340px,34%,500px);padding:clamp(26px,3vh,34px) clamp(26px,2.3vw,36px);border:1px solid rgba(255,255,255,.2);border-radius:22px;background:linear-gradient(160deg,rgba(58,50,84,.96),rgba(25,23,34,.97));box-shadow:0 28px 70px rgba(0,0,0,.52),inset 0 1px 0 rgba(255,255,255,.1);opacity:.18;filter:blur(1.5px);transition:opacity .8s,filter .8s,border-color .8s,box-shadow .8s}
.ops-card.is-active{opacity:1;filter:none;border-color:rgba(188,141,255,.55);box-shadow:0 32px 80px rgba(0,0,0,.58),0 0 0 1px rgba(188,141,255,.24),0 0 60px rgba(160,110,225,.14),inset 0 1px 0 rgba(255,255,255,.13)}
.ops-card__badge{display:inline-grid;place-items:center;width:clamp(40px,3vw,46px);height:clamp(40px,3vw,46px);border:1px solid rgba(255,255,255,.2);border-radius:13px;background:rgba(255,255,255,.09);color:var(--purple-bright);font:500 clamp(16px,1.3vw,18px)/1 ui-monospace,SFMono-Regular,Menlo,monospace}
.ops-card__tag{position:absolute;right:clamp(26px,2.3vw,36px);top:clamp(28px,3.2vh,38px);padding:7px 14px;border:1px solid rgba(255,255,255,.22);border-radius:99px;background:rgba(255,255,255,.05);color:#c3bfcd;font-size:13px}
.ops-card h3{margin:clamp(20px,2.6vh,26px) 0 12px;color:#fbfaff;font-size:clamp(26px,min(2.3vw,4vh),34px);font-weight:560;letter-spacing:-.03em}
.ops-card p{margin:0;color:#b8b4c3;font-size:clamp(15px,min(1.25vw,2.2vh),18px);line-height:1.75}
.ops-card__more{display:inline-flex;align-items:center;gap:9px;margin-top:clamp(20px,2.6vh,26px);padding:12px 20px;border:1px solid rgba(255,255,255,.26);border-radius:99px;background:rgba(255,255,255,.08);color:#f2eff7;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,border-color .2s}
.ops-card__more:hover{border-color:rgba(188,141,255,.5);background:rgba(188,141,255,.14)}
.ops-card__more i{font-style:normal;color:var(--purple-bright)}

.ops-dots{position:absolute;z-index:3;left:50%;bottom:22px;display:flex;gap:10px;margin:0;padding:0;list-style:none;transform:translateX(-50%)}
.ops-dots button{width:30px;height:4px;padding:0;border:0;border-radius:99px;background:rgba(255,255,255,.18);cursor:pointer;transition:background .3s,width .3s}
.ops-dots button.is-active{width:46px;background:linear-gradient(90deg,var(--purple-bright),var(--blue))}

.readiness-visual{position:absolute;z-index:0;left:50%;top:50%;width:600px;height:600px;opacity:.4;transform:translate(-50%,-50%);pointer-events:none}
/* 引言独占半屏、垂直居中 */
.readiness-outro{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 40px) 0 clamp(48px,8vh,96px)}
/* 扫描底纹：外层是 shell 有宽度限制，用 100vw 撑回整屏宽 */
.readiness-scan{position:absolute;z-index:0;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;opacity:.5;pointer-events:none}
/* 宣言屏的底纹：这一屏本身是 shell，同样要用 100vw 撑回整屏宽 */
.section-scan{position:absolute;z-index:-1;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;opacity:.5;pointer-events:none}
[data-scanner] canvas{display:block;width:100%;height:100%}
/* 19 个字，逐字延迟沿用 .12s 会拖到 3 秒，这里收到 .05s */
/* 线移到文字下方。width:fit-content 让容器收到文字实际宽度，
   这样下划线正好和文字等宽、整块再居中；固定 1000px 时线会比文字宽出一截 */
.readiness-quote{position:relative;z-index:1;--blur-step:.05s;width:fit-content;max-width:min(1000px,100%);margin:0 auto;padding:0 0 clamp(22px,3vh,34px);border-bottom:1px solid var(--line);color:#e6e2ec;font-size:clamp(24px,min(3.3vw,5.8vh),46px);line-height:1.5;letter-spacing:-.03em;font-weight:450;text-align:center}
.scan-glow{position:absolute;left:50%;top:50%;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(160,110,225,.24),rgba(75,88,207,.08) 40%,transparent 70%);transform:translate(-50%,-50%);filter:blur(12px);animation:pulse-glow 5s ease-in-out infinite}
.scan-ring{position:absolute;left:50%;top:50%;border:1px solid rgba(158,142,255,.23);border-radius:50%;transform:translate(-50%,-50%)}
.scan-ring::before,.scan-ring::after{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:var(--purple-bright);box-shadow:0 0 16px var(--purple)}
.ring-a{width:420px;height:420px;animation:scan-rotate 18s linear infinite}.ring-a::before{left:52px;top:45px}.ring-a::after{right:12px;bottom:122px;background:var(--blue)}
.ring-b{width:290px;height:290px;border-style:dashed;animation:scan-rotate 14s linear reverse infinite}.ring-b::before{right:21px;top:57px}.ring-b::after{left:37px;bottom:42px}
.scan-center{position:absolute;left:50%;top:50%;width:190px;height:190px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:50%;background:rgba(15,14,21,.86);box-shadow:inset 0 0 48px rgba(160,110,225,.12),0 0 70px rgba(0,0,0,.4);transform:translate(-50%,-50%)}
.scan-center span{color:var(--purple-bright);font:600 9px/1 ui-monospace,monospace;letter-spacing:.15em}.scan-center strong{font-size:67px;font-weight:400;line-height:1;letter-spacing:-.07em}.scan-center small{margin-top:6px;color:#75727e;font-size:11px}

/* ── 服务价值：左说明 + 右侧逐行结果；细线和十字标记切出网格感 ── */
.enterprise{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 60px) 0 clamp(70px,10vh,120px);background:linear-gradient(180deg,#0d0d12 0%,#0d0d12 62%,#09090d 100%)}
.enterprise-inner{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1fr);gap:clamp(34px,5.4vw,104px);align-items:center;max-width:1320px;margin:0 auto}
.enterprise-head{max-width:none;margin:0;padding-top:clamp(2px,1.2vh,14px);text-align:left}
.enterprise-head .section-kicker{justify-content:flex-start}
.enterprise-title{max-width:none;margin:0;font-size:clamp(27px,min(3.35vw,6vh),50px);font-weight:440;line-height:1.16;letter-spacing:-.055em;text-wrap:balance}
.enterprise-lead{margin:clamp(18px,2.6vh,30px) 0 0;color:#8f8c99;font-size:clamp(13px,min(1.12vw,2vh),16px);line-height:1.85;letter-spacing:-.01em;text-wrap:pretty}

.outcome-list{position:relative;margin:0;padding:0;list-style:none}
/* 每行的上边线；最后一行补一条下边线，四个角的十字由 ::before/::after 用 + 字形压在线端 */
.outcome-row{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"fig swap" "label swap";align-items:center;column-gap:clamp(18px,2.4vw,40px);padding:clamp(20px,3.4vh,38px) 0;border-top:1px solid var(--line)}
.outcome-row:last-child{border-bottom:1px solid var(--line)}
.outcome-row::before,.outcome-row::after,.outcome-list::before,.outcome-list::after{position:absolute;content:"+";color:#565365;font:400 13px/0 ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none}
.outcome-row::before,.outcome-row::after{top:0}
.outcome-list::before,.outcome-list::after{bottom:0}
.outcome-row::before,.outcome-list::before{left:-4px}
.outcome-row::after,.outcome-list::after{right:-4px}

/* 分隔线流光：铺在整张列表上，只在分隔线所在的高度作画 */
.outcome-flow{position:absolute;z-index:2;inset:0;width:100%;height:100%;pointer-events:none}
.outcome-row__figure{grid-area:fig;display:flex;align-items:baseline;gap:.16em;margin:0;color:#f4f1f8;font-size:clamp(34px,min(4.2vw,7.6vh),64px);font-weight:370;line-height:1.05;letter-spacing:-.06em;white-space:nowrap;font-variant-numeric:tabular-nums}
/* 数字齿轮：窗口用 clip-path 裁而不是 overflow:hidden——后者会把 inline-block 的
   基线改成底边，紫色单位就对不上数字的基线了。占位字负责宽高和基线，竖条绝对定位 */
.digit{position:relative;display:inline-block;clip-path:inset(0);--roll-base:0s}
.digit__seat{display:block;height:1em;line-height:1;font-style:normal;visibility:hidden}
.digit__strip{position:absolute;left:0;top:0;width:100%;transform:translateY(0);transition:transform 1.5s cubic-bezier(.16,.78,.24,1);transition-delay:calc(var(--roll-base) + var(--d,0) * .1s)}
.digit__strip b{display:block;height:1em;line-height:1;font-weight:inherit}
.digit-fixed{display:inline-block}
.js .outcome-list.is-visible .digit__strip{transform:translateY(calc(var(--roll,0) * -1em))}
/* 每行的齿轮跟着自己那行的进场时机走 */
.outcome-row:nth-child(1) .digit{--roll-base:.2s}
.outcome-row:nth-child(2) .digit{--roll-base:.32s}
.outcome-row:nth-child(3) .digit{--roll-base:.44s}
.outcome-row:nth-child(4) .digit{--roll-base:.56s}
.outcome-row__figure em{color:#c4a6ec;font-size:.34em;font-style:normal;font-weight:460;letter-spacing:-.015em}
.outcome-row__label{grid-area:label;margin:clamp(8px,1.2vh,14px) 0 0;color:#8b8895;font-size:clamp(12px,min(1.02vw,1.85vh),15px);line-height:1.7;letter-spacing:-.005em}
/* 右槽对应参考图放客户 logo 的位置，这里改成「被替代的旧做法」 */
.outcome-row__swap{grid-area:swap;display:flex;flex-direction:column;align-items:flex-end;gap:9px;margin:0;color:#7e7b8a;font-size:clamp(13px,min(1.18vw,2.1vh),17px);line-height:1.45;letter-spacing:-.01em;text-align:right;white-space:nowrap}
.outcome-row__swap::before{content:"替代";padding:4px 10px;border:1px solid var(--line);border-radius:6px;color:#9a8cba;font:500 12px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em}
.outcome-row{transition:border-color .35s}
/* 悬停时整行左侧透出一段渐隐的紫光，比只换边框色更明确 */
.outcome-row:hover{border-color:rgba(188,141,255,.34);background:linear-gradient(90deg,rgba(188,141,255,.075),transparent 56%)}
.outcome-row:hover .outcome-row__swap{color:#8e8b99}

.outcome-row:hover .outcome-row__swap{color:#8e8b99}

.evidence{position:relative;overflow:hidden;padding:0;background:linear-gradient(180deg,#09090d 0%,#09090d 62%,#08080b 100%)}
/* 律动底图：波纹画布 + 漂浮的数字，两端渐隐融进背景 */
/* 整层往上提一档：底部同量收进来，高度不变，线条的交汇点跟着上移 */
.evidence-flow{position:absolute;z-index:0;inset:-12vh 0 12vh;opacity:.5;pointer-events:none;mask-image:linear-gradient(180deg,transparent,#000 16%,#000 84%,transparent)}
.evidence-flow::before{content:"";position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:78px 78px}
.evidence-flow__canvas{position:absolute;inset:0;width:100%;height:100%}
.evidence-motes{position:absolute;inset:0}
.evidence-motes span{position:absolute;left:var(--mx);top:var(--my);color:rgba(203,193,226,.55);font:500 var(--ms,13px)/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em;text-shadow:0 0 14px rgba(160,110,225,.5);animation:mote-drift 9s ease-in-out infinite;animation-delay:var(--md,0s)}

.evidence-inner{position:relative;z-index:1;max-width:1320px;margin:0 auto;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 70px) 0 90px}
.evidence-head{max-width:1200px;margin:0 auto 82px;text-align:center}
.evidence-head .section-kicker{justify-content:center}
.evidence-head h2{max-width:1080px;margin-inline:auto;text-wrap:balance;text-shadow:0 0 46px rgba(160,110,225,.28)}
/* 过渡句：这一屏内容是垂直居中的，要落在底部交界处只能绝对定位 */
.evidence-outro{position:relative;z-index:1;min-height:100svh;display:flex;align-items:center;justify-content:center;padding:calc(var(--header-h) + 40px) var(--gutter) clamp(48px,8vh,96px)}
.creed{position:relative;width:min(100%,1320px);text-align:center}
/* 声明版背后的一团柔光，压在 evidence 的字符流之上 */
.creed::before{content:"";position:absolute;z-index:-1;left:50%;top:50%;width:min(126%,1180px);aspect-ratio:2.3;background:radial-gradient(ellipse at center,rgba(140,95,210,.17),transparent 68%);transform:translate(-50%,-50%);pointer-events:none}
/* 从上一屏垂下来的细线，落到标题横线上 */
.creed__thread{position:absolute;left:50%;bottom:calc(100% + 2px);width:1px;height:clamp(56px,11vh,124px);background:linear-gradient(180deg,transparent,rgba(188,141,255,.55));transform:translateX(-.5px)}
/* 横线做成左右两段，中间嵌标签——比用底色抠缺口稳，不依赖背景色是否对得上 */
.creed__rule{display:flex;align-items:center;justify-content:center;gap:clamp(14px,2vw,28px);margin:0 0 clamp(26px,4.4vh,56px)}
.creed__rule::before,.creed__rule::after{content:"";flex:1;max-width:340px;height:1px;background:linear-gradient(90deg,transparent,var(--line))}
.creed__rule::after{background:linear-gradient(90deg,var(--line),transparent)}
.creed__kicker{color:#8b87a0;font:600 clamp(11px,.95vw,14px)/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.22em;white-space:nowrap}
/* 最长行 15 字，4.6vw 是按「不再二次折行」反推的上限 */
.evidence-bridge{max-width:none;margin:0;color:#fff;font-size:clamp(22px,min(4.6vw,7vh),66px);font-weight:440;line-height:1.55;letter-spacing:-.035em;text-align:center}
/* 把句子里的三项能力抽出来做成编号条目；用编号而不是圆点，避开上一屏 evidence-note 的写法 */
.creed__pillars{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;margin:clamp(30px,5vh,60px) 0 0;padding:0;list-style:none}
.creed__pillars li{display:inline-flex;align-items:baseline;gap:9px;padding:2px clamp(12px,1.8vw,28px);color:#a6a3b0;font-size:clamp(13px,1.2vw,17px);letter-spacing:-.01em}
.creed__pillars li + li{border-left:1px solid var(--line)}
.creed__pillars b{color:#c4a6ec;font:600 clamp(11px,.9vw,13px)/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin:0;padding:0;overflow:hidden;border:1px solid rgba(255,255,255,.09);border-radius:20px;background:rgba(9,9,13,.62);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.metrics>div{padding:42px 28px 44px;border-right:1px solid var(--line)}.metrics>div:last-child{border-right:0}
/* 聚光：径向渐变跟着 --mouse-x/y 走，hover 时淡入 */
.card-spotlight{position:relative;overflow:hidden;--mouse-x:50%;--mouse-y:50%;--spotlight-color:rgba(255,255,255,.25)}
.card-spotlight::before{content:"";position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .5s ease;
  background:radial-gradient(circle at var(--mouse-x) var(--mouse-y),var(--spotlight-color),transparent 80%)}
.card-spotlight:hover::before,.card-spotlight:focus-within::before{opacity:.6}
/* 内容抬到聚光之上，避免大号数字被这层白光洗淡 */
.card-spotlight>*{position:relative;z-index:1}
.metrics dt{color:#f2eff6;font-size:clamp(48px,5vw,70px);font-weight:390;line-height:1;letter-spacing:-.065em}.metrics .unit{margin-left:2px;font-size:.52em;letter-spacing:0}.metrics sup{position:relative;top:-1.6em;margin-left:4px;color:var(--purple-bright);font-size:15px}.metrics dd{margin:15px 0 0;color:#7c7984;font-size:13px}
.evidence-note{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:30px;color:#77747f;font:500 10px/1 ui-monospace,monospace;letter-spacing:.04em}.evidence-note i{width:3px;height:3px;border-radius:50%;background:#4b4852}

.closing{min-height:100svh;display:flex;align-items:center;overflow:hidden;background:#08080b}
.closing-glow{position:absolute;width:760px;height:760px;left:50%;top:52%;border-radius:50%;background:radial-gradient(circle,rgba(112,74,170,.26),rgba(62,70,164,.09) 34%,transparent 67%);transform:translate(-50%,-50%);filter:blur(4px)}
.closing-glow::before,.closing-glow::after{content:"";position:absolute;inset:14%;border:1px solid rgba(160,110,225,.13);border-radius:50%;animation:scan-rotate 23s linear infinite}.closing-glow::after{inset:27%;border-style:dashed;animation-direction:reverse}
/* 光环：整体强度用这里的 opacity 调，不要动 shader 里的 uOpacity */
.closing-rings{position:absolute;z-index:0;inset:0;width:100%;height:100%;opacity:.55;pointer-events:none}
/* 字符流：一整块画布，用左右两个椭圆遮罩裁成对称的两团云 */
.closing-stream{position:absolute;z-index:0;inset:0;width:100%;height:100%;opacity:.5;pointer-events:none;
  mask-image:radial-gradient(ellipse 23% 41% at 24% 50%,#000 26%,transparent 76%),radial-gradient(ellipse 23% 41% at 76% 50%,#000 26%,transparent 76%)}
/* 实体图标的做法：材质靠「有方向的光」而不是一圈平铺的辉光。
   30% 的圆角比例接近 app 图标的连续圆角，比固定 px 更耐看 */
/* 磨砂面：受光是一层没有形状边缘的渐变，纹理靠颗粒。
   isolation 必须有——::after 用了混合模式，不隔离会连区块背景一起混进去 */
.closing-mark{position:relative;isolation:isolate;display:inline-grid;place-items:center;width:clamp(66px,5.4vw,88px);aspect-ratio:1;height:auto;margin-bottom:clamp(40px,6.4vh,72px);border:0;border-radius:22.5%;
  background:linear-gradient(180deg,rgba(255,255,255,.032),rgba(255,255,255,.008) 44%,transparent 70%),radial-gradient(120% 100% at 50% -12%,rgba(150,110,220,.18),transparent 66%),linear-gradient(168deg,#221d33 0%,#16141d 54%,#0d0c12 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.035),
    inset 0 -14px 32px rgba(122,82,192,.14),
    0 26px 50px -18px rgba(0,0,0,.9),
    0 0 74px -12px rgba(150,105,225,.3)}
/* 描边做成有方向的渐变：左上受光、右下背光，一圈等亮的边是塑料感的主要来源 */
.closing-mark::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(150deg,rgba(198,178,238,.32),rgba(150,120,215,.13) 38%,rgba(255,255,255,.035) 62%,rgba(188,141,255,.22));
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;-webkit-mask-composite:xor}
/* 磨砂颗粒：分形噪声铺满整面，overlay 让它只改明暗不改色相 */
.closing-mark::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27120%27%20height%3D%27120%27%3E%3Cfilter%20id%3D%27g%27%3E%3CfeTurbulence%20type%3D%27fractalNoise%27%20baseFrequency%3D%27.85%27%20numOctaves%3D%274%27%20stitchTiles%3D%27stitch%27%2F%3E%3CfeColorMatrix%20type%3D%27saturate%27%20values%3D%270%27%2F%3E%3C%2Ffilter%3E%3Crect%20width%3D%27100%25%27%20height%3D%27100%25%27%20filter%3D%27url%28%23g%29%27%2F%3E%3C%2Fsvg%3E");
  background-size:120px 120px;opacity:.16;mix-blend-mode:overlay}
.closing-mark img{position:relative;z-index:1;width:80%;height:auto;filter:drop-shadow(0 2px 10px rgba(0,0,0,.55))}
.closing-inner{position:relative;z-index:1;max-width:1320px;margin:0 auto;text-align:center}.closing-inner h2{margin:0;font-size:clamp(32px,min(5.2vw,9vh),70px);font-weight:420;line-height:1.06;letter-spacing:-.06em}.closing-inner>p{max-width:530px;margin:30px auto 0;color:#95929d;font-size:16px;line-height:1.75}.closing-inner .hero-actions{justify-content:center;margin-top:38px}
/* ── 页脚：切角面板 + 四列导航；竖线两端的十字沿用「为何选择」那屏的语汇 ── */
.site-footer{position:relative;padding:clamp(40px,6vh,80px) 0 clamp(28px,4vh,52px);background:#08080b}
/* 切角靠 clip-path，描边只能用错开 1px 的两层来做——border 不会跟着 clip-path 拐弯 */
.footer-panel{--cut:clamp(18px,2.4vw,34px);position:relative;max-width:1320px;margin:0 auto;padding:clamp(32px,4.2vw,58px) clamp(24px,3.2vw,52px) clamp(22px,2.8vw,36px);background:linear-gradient(158deg,rgba(255,255,255,.16),rgba(255,255,255,.05) 44%,rgba(255,255,255,.035));clip-path:polygon(var(--cut) 0,100% 0,100% 100%,0 100%,0 var(--cut))}
.footer-panel::before{content:"";position:absolute;inset:1px;background:linear-gradient(172deg,#0c0b12,#08080b 62%);clip-path:polygon(var(--cut) 0,100% 0,100% 100%,0 100%,0 var(--cut))}
.footer-panel > *{position:relative;z-index:1}

.footer-brand{display:flex;align-items:center;gap:clamp(16px,2vw,28px);margin:0 0 clamp(32px,4.6vh,58px)}
.footer-logo{width:auto;height:clamp(24px,2.2vw,32px)}
.footer-brand p{margin:0;padding-left:clamp(16px,2vw,28px);border-left:1px solid var(--line);color:#84818e;font-size:clamp(12px,1vw,14px);line-height:1.65;letter-spacing:-.01em}

.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.footer-col{position:relative;padding:0 clamp(14px,1.6vw,26px) clamp(10px,1.6vh,22px) clamp(20px,2.6vw,46px)}
.footer-col:first-child{padding-left:0}
.footer-col:not(:first-child){border-left:1px solid var(--line)}
.footer-col:not(:first-child)::before,.footer-col:not(:first-child)::after{position:absolute;left:-4px;content:"+";color:#413e4d;font:400 12px/0 ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none}
.footer-col:not(:first-child)::before{top:0}
.footer-col:not(:first-child)::after{bottom:0}
.footer-col__title{margin:0 0 clamp(15px,2.2vh,24px);color:#f2eff6;font-size:clamp(13px,1.05vw,15px);font-weight:600;letter-spacing:-.01em}
.footer-col ul{display:flex;flex-direction:column;gap:clamp(9px,1.4vh,15px);margin:0;padding:0;list-style:none}
.footer-col a,.footer-col li span{color:#84818e;font-size:clamp(12px,1vw,14px);line-height:1.5;letter-spacing:-.01em}
.footer-col a{transition:color .25s}
.footer-col a:hover{color:#fff}
/* 合作保障那列是承诺不是页面，所以不做成链接 */
.footer-col li span{color:#78757f}
.footer-col__note{margin:0 0 clamp(14px,2vh,20px);color:#78757f;font-size:clamp(12px,.98vw,13px);line-height:1.7;letter-spacing:-.01em}

/* 这列没有列表，靠自身撑不到其他列的高度，补一点下留白让四条竖线等长 */
.footer-col--cta{padding-bottom:clamp(16px,2.4vh,30px)}
.footer-cta{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.footer-btn{--cut:10px;position:relative;display:inline-flex;align-items:center;padding:11px 18px;font-size:clamp(12px,1vw,13px);font-weight:560;letter-spacing:-.01em;white-space:nowrap;clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);transition:background .25s}
.footer-btn span{position:relative;z-index:1}
.footer-btn--solid{background:#f1eef6;color:#0b0910}
.footer-btn--solid:hover{background:#fff}
.footer-btn--ghost{background:rgba(255,255,255,.2)}
.footer-btn--ghost::before{content:"";position:absolute;inset:1px;background:#0c0b12;clip-path:inherit;transition:background .25s}
.footer-btn--ghost span{color:#ded9e6}
.footer-btn--ghost:hover::before{background:#17151f}

.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;margin-top:clamp(30px,4.4vh,56px);padding-top:clamp(18px,2.6vh,28px);border-top:1px solid var(--line);color:#65626e;font-size:clamp(12px,.98vw,13px)}
.footer-bottom p{margin:0}
.footer-bottom a{color:#84818e;transition:color .25s}
.footer-bottom a:hover{color:#fff}
.footer-icp{margin-right:auto}
.footer-top i{display:inline-block;transition:transform .25s}
.footer-top:hover i{transform:translateY(-2px)}
@keyframes status-pulse{50%{opacity:.35;box-shadow:0 0 3px var(--ok)}}

.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(36px) scale(.988);transition:opacity 1.05s cubic-bezier(.16,.84,.24,1),transform 1.05s cubic-bezier(.16,.84,.24,1);transition-delay:calc(var(--reveal-order,0) * .09s)}
.js .reveal.is-visible{opacity:1;transform:none}
.loop-node:nth-child(2){transition-delay:.1s,.1s,0s,0s}.loop-node:nth-child(3){transition-delay:.2s,.2s,0s,0s}.loop-node:nth-child(4){transition-delay:.3s,.3s,0s,0s}.loop-node:nth-child(5){transition-delay:.4s,.4s,0s,0s}
/* 结果行：逐条从右侧滑入，和左栏文字形成一收一放 */
.js .outcome-list .outcome-row{opacity:0;transform:translateX(34px);transition:opacity .88s cubic-bezier(.16,.84,.24,1),transform .88s cubic-bezier(.16,.84,.24,1),border-color .35s,background .35s}
.js .outcome-list.is-visible .outcome-row{opacity:1;transform:none}
.outcome-row:nth-child(1){transition-delay:.14s,.14s,0s,0s}
.outcome-row:nth-child(2){transition-delay:.26s,.26s,0s,0s}
.outcome-row:nth-child(3){transition-delay:.38s,.38s,0s,0s}
.outcome-row:nth-child(4){transition-delay:.5s,.5s,0s,0s}

/* ── 各模块进场：按内容性质给不同的运动 ───────────────────────── */

/* 装置类（改码演示台 / 运维大盘）：从略小处放大推进，比正文慢，像设备启动 */
.js .stage-in{opacity:0;transform:translateY(34px) scale(.955);transition:opacity 1.2s cubic-bezier(.16,.84,.24,1),transform 1.2s cubic-bezier(.16,.84,.24,1);transition-delay:calc(var(--reveal-order,0) * .09s)}
.js .stage-in.is-visible{opacity:1;transform:none}

/* 运维大盘里的扫描环单独淡入：它自带 translate(-50%,-50%) 定位，只能动 opacity 和 scale */
.js .ops-stage .readiness-visual{opacity:0;transform:translate(-50%,-50%) scale(.82);transition:opacity 1.3s ease-out,transform 1.3s cubic-bezier(.16,.84,.24,1);transition-delay:.3s}
.js .ops-stage.is-visible .readiness-visual{opacity:.4;transform:translate(-50%,-50%)}
.js .ops-stage .ops-dots{opacity:0;transition:opacity .7s ease-out .72s}
.js .ops-stage.is-visible .ops-dots{opacity:1}

/* 步骤列表：逐条从左滑入，进场方向和阅读方向一致 */
.js .story-steps .story-step{opacity:0;transform:translateX(-28px);transition:opacity .82s ease-out,transform .82s cubic-bezier(.16,.84,.24,1)}
.js .story-steps.is-visible .story-step{opacity:1;transform:none}
.story-steps .story-step:nth-child(1){transition-delay:.08s}
.story-steps .story-step:nth-child(2){transition-delay:.2s}
.story-steps .story-step:nth-child(3){transition-delay:.32s}

/* 数据指标：外框先落位，四格再依次浮起，接上数字滚动 */
.js .metrics > div{opacity:0;transform:translateY(22px);transition:opacity .78s ease-out,transform .78s cubic-bezier(.16,.84,.24,1)}
.js .metrics.is-visible > div{opacity:1;transform:none}
.metrics > div:nth-child(1){transition-delay:.16s}
.metrics > div:nth-child(2){transition-delay:.28s}
.metrics > div:nth-child(3){transition-delay:.4s}
.metrics > div:nth-child(4){transition-delay:.52s}

/* 收尾的 logo 标：缩放淡入，收束整页 */
/* 回弹和旋转偏活泼，这里换成克制的浮起，收尾屏的气质更稳 */
.js .closing-mark{opacity:0;transform:scale(.88) translateY(14px);transition:opacity 1.1s ease-out,transform 1.1s cubic-bezier(.16,.84,.24,1)}
.js .closing-mark.is-visible{opacity:1;transform:none}

@keyframes hero-enter{to{opacity:1;transform:none}}
@keyframes hero-breathe{0%{transform:scale(1.035) translate3d(0,0,0)}100%{transform:scale(1.08) translate3d(-1.4%,.8%,0)}}
@keyframes scroll-nudge{0%,100%{transform:translateY(0);opacity:.6}50%{transform:translateY(4px);opacity:1}}
@keyframes ring-drift{50%{transform:rotate(1deg) scale(1.015)}}
@keyframes pulse-glow{50%{opacity:.6;transform:translate(-50%,-50%) scale(.94)}}
@keyframes scan-rotate{to{transform:translate(-50%,-50%) rotate(360deg)}}
@keyframes mote-drift{0%,100%{opacity:.16;transform:translateY(7px)}50%{opacity:.72;transform:translateY(-7px)}}

/* 顶栏五项 + 右侧按钮，1180px 以下先收窄导航项的内边距 */
@media (max-width:1180px){
  .nav-links{margin-left:14px}
  .nav-links a{padding:0 12px;font-size:14px}
}
/* 再窄就先让掉「为何选择」，它在页面里还有锚点可达 */
@media (max-width:1060px){
  .header-ghost{display:none}
}
@media (max-width:980px){
  .nav-links{display:none}
  .ops-card{width:clamp(310px,42%,440px)}
  .loop-board{--loop-cols:6;--loop-row:150px}
  .loop-tree{--branch:34px;row-gap:24px}
  .delivery .section-heading{margin-bottom:58px}
  .story-layout{grid-template-columns:1fr;gap:26px}
  .story-steps{gap:8px}.story-step__body p{font-size:13px}
  .story-head h2{font-size:clamp(26px,7.4vw,34px)}
  .readiness-visual{width:460px;height:460px}
  .enterprise-inner{gap:clamp(28px,3.6vw,60px)}
  .metrics{grid-template-columns:repeat(2,1fr)}.metrics>div:nth-child(2){border-right:0}.metrics>div:nth-child(-n+2){border-bottom:1px solid var(--line)}
}

@media (max-width:760px){
  /* 移动端惯性滚动配强制吸附会很顿挫，且那两屏在窄屏本来就不钉住 */
  html{scroll-snap-type:none}
  :root{--shell:calc(100% - 40px);--header-h:64px}
  .section{padding:102px 0}
  .site-header{height:var(--header-h);padding:0 20px}.brand-logo{height:33px}
  .brand{gap:9px}.brand-word{padding-left:10px;font-size:13px;letter-spacing:.2em}.brand-word::before{height:14px;margin-top:-7px}.header-ghost{display:none}.header-cta{height:42px;padding:0 6px 0 16px;font-size:14px}.header-cta-badge{width:29px;height:29px;font-size:13px}
  /* 五个横排放不下，改成居中换行 */
  .hero-chips{left:20px;right:20px;bottom:26px;justify-content:center;gap:10px 20px}
  .hero-chips li{font-size:13px;gap:8px}
  .hero{min-height:100svh}.hero-media{background-position:center}.hero-shade{background:linear-gradient(180deg,rgba(7,7,10,.82) 0%,rgba(7,7,10,.6) 28%,rgba(7,7,10,.86) 69%,#08080b 100%)}.hero-grid{background-size:50px 50px;opacity:.18}
  .dot-grid{opacity:.82}
  .hero-inner{justify-content:flex-start;padding-top:134px;padding-bottom:150px}
  .hero-stroke-text{gap:6px;margin-bottom:24px}.hero-mark{height:clamp(20px,5.4vw,30px)}.particle-text{width:min(100%,140px)}.hero h1{font-size:clamp(38px,13vw,60px);line-height:1.06;letter-spacing:-.055em}.hero-lead{margin-top:24px;color:#ccc9d2;font-size:16px;line-height:1.75}.hero-actions{display:grid;grid-template-columns:1fr;margin-top:28px}.button{width:100%;min-height:58px;font-size:16px}.scroll-cue{display:none}
  .manifesto{padding:calc(var(--header-h) + 44px) 0 72px}.manifesto .section-kicker{margin-bottom:44px;font-size:13px}.manifesto h2,.section-heading h2,.story-head h2,.evidence-head h2{font-size:42px;line-height:1.13}
  .manifesto h2{font-size:clamp(30px,8.8vw,42px);line-height:1.18}
  /* 窄屏放不下整句，允许换行并关掉裁切（多行时固定高度的遮罩会切掉后面几行） */
  .pop-text{max-width:100%;padding:.14em .26em}.pop-text__mask{height:auto;overflow:visible;white-space:normal;line-height:1.34}.pop-text__char{transform:none}
  .section-heading{grid-template-columns:1fr;gap:28px;margin-bottom:58px}.section-summary{font-size:14px}
  .delivery .section-kicker{font-size:13px}.delivery .section-summary{font-size:16px}
  /* 窄屏缩进会把节点挤扁，退成不带缩进的直列；网格线和追光一并关掉 */
  .loop-board{background-image:none}.loop-rays{display:none}
  /* 窄屏左右分叉排不开：主干挪到最左，节点全部靠右单列挂在主干上 */
  .loop-tree{--branch:22px;grid-template-columns:1fr;column-gap:0;row-gap:16px;padding-left:calc(var(--branch) + 4px)}
  .loop-tree::before{left:0;margin-left:0}
  .loop-node:nth-child(n){grid-column:1;flex-direction:row;text-align:left}
  .loop-node{gap:16px;padding:22px 20px;border-radius:22px}
  .loop-node:nth-child(n)::before{left:auto;right:100%}
  .loop-node:nth-child(n)::after{left:auto;right:calc(100% + var(--branch));width:7px;height:7px;transform:translate(50%,-50%)}
  .loop-node__index{font-size:29px}
  .loop-node__body h3{font-size:19px}.loop-node__body p{font-size:15px}
  /* 手机上不钉住：面板改为竖排全部展开，否则只能看到第一个演示 */
  .product-story{padding:102px 0}
  .story-scroll{height:auto}
  .story-sticky{position:static;min-height:0;overflow:visible;padding:0}
  .story-stage{height:auto;margin-top:32px;overflow:visible;--frame-scale:1}
  .story-panel{position:static;display:block;opacity:1;transform:none;filter:none;z-index:auto;pointer-events:auto;margin-bottom:22px}
  .story-panel--browser .browser-frame,.story-panel--console .delivery-console,.audit-card{width:100%;transform:none}
  /* 窄屏这句排不进一行，解除 nowrap 否则会横向溢出 */
  .story-head .story-lead{max-width:100%;font-size:15px;white-space:normal}
  .story-steps{gap:0;margin-top:16px}
  .story-step{padding:14px 0 14px 16px;opacity:1}
  .story-step__bar{width:2px}.story-step__bar i{width:100%;height:100%}
  .browser-frame{border-radius:15px}.browser-bar{height:38px}.demo-page{height:340px}.demo-hero{padding:42px 0 0 25px}.demo-hero strong{font-size:31px}.demo-product{right:-17%;top:63px;transform:scale(.74);transform-origin:top right}.demo-target{left:25px;bottom:31px;width:128px;height:38px}.selection-ring{left:14px;bottom:18px;width:153px;height:64px}.comment-bubble{left:118px;bottom:74px;width:190px;padding:10px;font-size:10px}
  .story-panel--console .delivery-console{padding:20px 18px}.story-panel--console .console-row{min-height:42px;font-size:14px}.story-panel--console .console-row i{width:23px;height:23px}
  .audit-card{padding:20px 18px}.audit-list li{min-height:42px;font-size:14px}.audit-list i{width:23px;height:23px}.audit-foot{font-size:13px}
  /* 窄屏不做平移：卡片竖排全部点亮，画布退回正常流 */
  .readiness{padding:102px 0}
  .ops-scroll{height:auto}
  .ops-sticky{position:static;min-height:0;overflow:visible;padding:0}
  /* 窄屏这句排不进一行，解除 nowrap 否则会横向溢出 */
  .readiness-head .story-lead{max-width:100%;font-size:15px;white-space:normal}
  .ops-stage{height:auto;margin-top:34px;overflow:visible;border:0;border-radius:0;background:none;cursor:default}
  .ops-canvas{position:static;width:100%;height:auto;transform:none!important}
  .ops-card{position:static;width:100%;margin-bottom:16px;opacity:1;filter:none;padding:22px 20px}
  .ops-card__tag{right:20px;top:24px}
  .ops-card h3{margin:18px 0 10px;font-size:22px}.ops-card p{font-size:15px}
  .ops-card__more{display:none}
  .ops-dots{display:none}
  .readiness-visual{display:none}
  .readiness-outro{min-height:100svh;padding:calc(var(--header-h) + 28px) 0 56px}.readiness-quote{padding:0 0 20px;font-size:clamp(20px,5.4vw,26px)}
  .scan-center strong{font-size:52px}
  #readiness-title{font-size:clamp(34px,9vw,44px)}
  /* 窄屏拆成上下两段；结果行的「替代」标签落到说明下方，避免挤成两行 */
  .enterprise-inner{grid-template-columns:1fr;gap:38px}
  .enterprise-title{font-size:clamp(30px,8.4vw,42px)}.enterprise-lead{font-size:14px}
  .outcome-row{grid-template-columns:1fr;grid-template-areas:"fig" "label" "swap";row-gap:4px;padding:22px 0}
  .outcome-row__figure{font-size:clamp(32px,10vw,44px)}
  .outcome-row__label{font-size:13px}
  .outcome-row__swap{flex-direction:row;align-items:center;gap:9px;margin-top:12px;white-space:normal;text-align:left}
  .faq{padding:calc(var(--header-h) + 40px) 0 60px}
  /* 竖线在单列下没有意义，改成左对齐贴边 */
  .faq-inner{grid-template-columns:1fr;gap:36px}
  .faq-head h2{font-size:clamp(30px,8.4vw,42px)}
  .faq-list{padding-left:0;border-left:0}
  .faq-list::before{content:none}
  .faq-inner{--faq-no:26px}
  .faq-item__q{font-size:15px;gap:12px}
  .evidence-inner{padding:calc(var(--header-h) + 44px) 0 60px}
  .evidence-outro{min-height:100svh;padding:calc(var(--header-h) + 28px) var(--gutter) 56px}
  .evidence-bridge{font-size:clamp(20px,5.2vw,30px);line-height:1.6}
  /* 三条并排会挤，改成竖排，分隔线跟着转到上边 */
  .creed__thread{height:44px}
  .creed__pillars{flex-direction:column;gap:0}
  .creed__pillars li{justify-content:center;padding:11px 0}
  .creed__pillars li + li{border-left:0;border-top:1px solid var(--line)}
  .evidence-head{margin-bottom:48px}.metrics{grid-template-columns:1fr 1fr;border-radius:16px}.metrics>div{padding:26px 14px}.metrics dt{font-size:44px}.metrics dd{font-size:12px}.evidence-note{align-items:center;justify-content:center;flex-direction:column;gap:10px}.evidence-note i{display:none}
  .evidence-motes span:nth-child(n+7){display:none}
  .closing{min-height:690px}.closing-inner h2{font-size:clamp(32px,10vw,42px)}.closing-inner>p{font-size:15px}
  /* 窄屏两团云会挤到文字后面，收成中间一团 */
  .closing-stream{mask-image:radial-gradient(ellipse 62% 34% at 50% 50%,#000 20%,transparent 78%)}
  .closing-mark{width:62px;margin-bottom:34px}
  /* 四列拆成两列；竖线只留在右侧那一列，左列回到贴边 */
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:34px}
  .footer-col{padding:0 0 18px 22px}
  .footer-col:nth-child(odd){padding-left:0;border-left:0}
  .footer-col:nth-child(odd)::before,.footer-col:nth-child(odd)::after{content:none}
  .footer-col:nth-child(even){border-left:1px solid var(--line)}
  .footer-brand{flex-direction:column;align-items:flex-start;gap:16px}
  .footer-brand p{padding-left:0;border-left:0}
  .footer-bottom{justify-content:flex-start}
}

@media (max-width:380px){
  .header-cta-badge{display:none}.header-cta{padding:0 12px}.brand-logo{height:28px}
  .hero-inner{padding-top:122px}.hero-lead{font-size:15px}
  .manifesto h2,.section-heading h2,.story-head h2,.evidence-head h2{font-size:37px}
  .manifesto h2{font-size:30px}
  .comment-bubble{left:96px;width:180px}
}

/* BorderGlow 端口：光弧角度和边缘距离由 JS 按原组件的算法算好写进变量，
   这里把它画成沿边框的一段圆锥渐变。原组件的 BorderGlow.css 没给出，渲染层是按变量语义重建的。
   --cursor-angle 的 0deg 朝上、顺时针，正好和 conic-gradient 的方向约定一致 */
[data-glow-border]{--glow-radius:16px;position:relative;
  --cursor-angle:0deg;--edge-proximity:0;--edge-sensitivity:30;--cone-spread:25;
  --glow-color:hsl(276deg 92% 78%);--glow-color-40:hsl(276deg 92% 78% / .4);--glow-color-10:hsl(276deg 92% 78% / .1)}
/* inset:-1px 而不是 0：绝对定位以内边距框为基准，不减这 1px 光环会落在边框内侧 */
[data-glow-border]::before,[data-glow-border]::after{content:"";position:absolute;inset:-1px;border-radius:var(--glow-radius);padding:1px;pointer-events:none;
  background:conic-gradient(from var(--cursor-angle) at 50% 50%,
    var(--glow-color) 0deg,
    var(--glow-color-40) calc(var(--cone-spread) * .5deg),
    var(--glow-color-10) calc(var(--cone-spread) * 1deg),
    transparent calc(var(--cone-spread) * 1.7deg),
    transparent calc(360deg - var(--cone-spread) * 1.7deg),
    var(--glow-color-10) calc(360deg - var(--cone-spread) * 1deg),
    var(--glow-color-40) calc(360deg - var(--cone-spread) * .5deg),
    var(--glow-color) 360deg);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;-webkit-mask-composite:xor;
  /* 低于 --edge-sensitivity 不亮，越贴边越亮 */
  opacity:clamp(0,calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity))),1);
  transition:opacity .25s ease}
/* 第二层加粗虚化，做出溢出边框的辉光 */
[data-glow-border]::after{padding:2px;filter:blur(6px)}
/* 进场扫描时 JS 每帧写值，过渡会跟它打架 */
[data-glow-border].sweep-active::before,[data-glow-border].sweep-active::after{transition:none}
/* 演示台三张卡：光环外扩 1px，圆角同步 +1px 才贴合各自的边 */
.browser-frame[data-glow-border]{--glow-radius:19px}
.delivery-console[data-glow-border]{--glow-radius:17px}
.audit-card[data-glow-border]{--glow-radius:21px}
/* 卡片本身不是 overflow:hidden 就不会裁掉外扩的光环；浏览器框是，单独放开 */
.browser-frame[data-glow-border]{overflow:visible}
.browser-frame[data-glow-border] .browser-bar{border-radius:18px 18px 0 0}
.browser-frame[data-glow-border] .demo-page{border-radius:0 0 18px 18px;overflow:hidden}


/* ── 常见问题：左说明右折叠列表，中间一条竖线，顶端压十字 ────── */
.faq{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--header-h) + 60px) 0 clamp(50px,8vh,100px);background:linear-gradient(180deg,#08080b 0%,#0b0a10 46%,#08080b 100%)}
.faq-inner{--faq-no:clamp(30px,2.6vw,44px);position:relative;display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1fr);gap:clamp(30px,4vw,80px);align-items:center;max-width:1320px;margin:0 auto;padding-top:clamp(14px,2.4vh,28px)}
/* 十字压在左右两端和竖线顶端，和「为何选择」那屏是同一套语汇 */
.faq-inner::before,.faq-inner::after,.faq-list::before{position:absolute;top:0;content:"+";color:#413e4d;font:400 13px/0 ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none}
.faq-inner::before{left:-4px}
.faq-inner::after{right:-4px}

.faq-head h2{margin:0;font-size:clamp(30px,min(3.8vw,6.8vh),58px);font-weight:440;line-height:1.14;letter-spacing:-.055em}
.faq-head p{margin:clamp(18px,2.6vh,30px) 0 0;color:#8f8c99;font-size:clamp(13px,min(1.12vw,2vh),16px);line-height:1.85;letter-spacing:-.01em;text-wrap:pretty}
/* 切角按钮，和页脚那两个同一种做法：clip-path 切角 + 错开 1px 的两层描边 */
.faq-cta{--cut:11px;position:relative;display:inline-flex;align-items:center;margin-top:clamp(24px,3.4vh,38px);padding:13px 22px;background:rgba(255,255,255,.22);font-size:clamp(12px,1vw,14px);font-weight:560;letter-spacing:-.01em;clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%)}
.faq-cta::before{content:"";position:absolute;inset:1px;background:#0a0910;clip-path:inherit;transition:background .25s}
.faq-cta span{position:relative;z-index:1;color:#ded9e6}
.faq-cta:hover::before{background:#171420}

.faq-list{position:relative;border-left:1px solid var(--line);padding-left:clamp(24px,3vw,60px)}
.faq-list::before{left:calc(-1 * clamp(24px,3vw,60px) - 4px)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child .faq-item__q{padding-top:0}
.faq-item__head{margin:0;font-size:inherit;font-weight:inherit}
.faq-item__q{display:flex;align-items:center;gap:clamp(12px,1.4vw,20px);width:100%;padding:clamp(18px,2.6vh,26px) 12px clamp(18px,2.6vh,26px) 0;border:0;border-radius:0 10px 10px 0;background:linear-gradient(90deg,rgba(188,141,255,0),transparent 58%);color:#eeeaf4;font-size:clamp(14px,min(1.25vw,2.2vh),18px);font-weight:560;letter-spacing:-.02em;line-height:1.5;text-align:left;cursor:pointer;transition:color .25s,background .3s}
.faq-item__q:hover{color:#fff;background:linear-gradient(90deg,rgba(188,141,255,.07),transparent 58%)}
/* 八条只有文字太平；编号给出节奏，也让读者知道自己看到第几条 */
.faq-item__no{flex:0 0 var(--faq-no);color:#6f6c7d;font:500 12px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em;transition:color .3s}
.faq-item.is-open .faq-item__no,.faq-item__q:hover .faq-item__no{color:var(--purple-bright)}
.faq-item__q > span:not(.faq-item__no){flex:1;min-width:0}
/* 用两条 1px 拼出的 V 形箭头，展开时转成 ∧ */
.faq-item__chevron{position:relative;flex:0 0 auto;width:15px;height:15px;transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.faq-item__chevron::before,.faq-item__chevron::after{content:"";position:absolute;top:6px;width:9px;height:1.5px;border-radius:1px;background:#8b87a0;transition:background .25s}
.faq-item__chevron::before{left:0;transform:rotate(45deg)}
.faq-item__chevron::after{right:0;transform:rotate(-45deg)}
.faq-item__q:hover .faq-item__chevron::before,.faq-item__q:hover .faq-item__chevron::after{background:#c4a6ec}
.faq-item.is-open .faq-item__chevron{transform:rotate(180deg)}

/* 0fr → 1fr 展开：不用写死 max-height，内容多长都能精确停在自然高度 */
.faq-item__a{display:grid;grid-template-rows:0fr;visibility:hidden;transition:grid-template-rows .45s cubic-bezier(.2,.8,.2,1),visibility 0s linear .45s}
.faq-item__a > div{overflow:hidden}
.faq-item.is-open .faq-item__a{grid-template-rows:1fr;visibility:visible;transition:grid-template-rows .45s cubic-bezier(.2,.8,.2,1),visibility 0s}
.faq-item__a p{margin:0;padding:0 clamp(20px,2.4vw,44px) clamp(20px,2.8vh,28px) calc(var(--faq-no) + clamp(12px,1.4vw,20px));color:#8f8c99;font-size:clamp(12.5px,min(1.05vw,1.9vh),15px);line-height:1.85;letter-spacing:-.005em}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;scroll-snap-type:none}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}
  .hero-enter,.js .reveal,.js .stage-in,.js .story-steps .story-step,.js .metrics > div,.js .closing-mark{opacity:1!important;transform:none!important}
  .js .outcome-list .outcome-row{opacity:1!important;transform:none!important}
  /* JS 已跳过建条，这里兜底：万一竖条建出来了也直接停在目标数字上 */
  .digit__strip{transform:translateY(calc(var(--roll,0) * -1em))!important}
  .hero-media{transform:scale(1.035)}
  .dot-grid,.light-rays,.section-video,.evidence-motes,.closing-stream,.closing-rings,.section-threads,.readiness-scan,.section-scan,.loop-current,.story-beam,.outcome-flow{display:none}
  .faq-item__a{transition-duration:.01ms}
  /* 不做平移：卡片竖排全部点亮 */
  .readiness{padding:120px 0}
  .ops-scroll{height:auto}
  .ops-sticky{position:static;min-height:0;overflow:visible;padding:0}
  .ops-stage{height:auto;overflow:visible;border:0;background:none;cursor:default}
  .ops-canvas{position:static;width:100%;height:auto;transform:none!important}
  .ops-card{position:static;width:100%;margin-bottom:18px;opacity:1;filter:none}
  .ops-card__more,.ops-dots,.readiness-visual{display:none}
  /* 不钉住、不做滚动接管，三段内容直接全部展开 */
  .product-story{padding:120px 0}
  .story-scroll{height:auto}
  .story-sticky{position:static;min-height:0;overflow:visible;padding:0}
  .story-stage{height:auto;overflow:visible;--frame-scale:1}
  .story-panel{position:static;display:block;opacity:1;transform:none;filter:none;z-index:auto;pointer-events:auto;margin-bottom:24px}
  .story-panel--browser .browser-frame,.story-panel--console .delivery-console,.audit-card{margin-inline:auto}
  .story-steps{gap:0}
  .story-step{padding:14px 0 14px 16px;opacity:1}
  .story-step__bar{width:2px}.story-step__bar i{width:100%;height:100%}
  .story-step__body,.story-step.is-active .story-step__body{max-height:none;margin-top:12px;opacity:1}
}